Valve-spring compressor.



R, A. DURLAND.

VALVE SPRING comrnzssoa.

APPLICATION FILED DEC. 1. 19I6.

Patented Aug. 14, 1917.

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INVENTOR DhADurland ATTORNEY provision of a valve spring compressor was.DUBLAND, or wnsnme'ronvrrmn, new YORK.

vnnvn-srnme comrnnsson.

Specification 01' Letters Patent. Patented'Aug. 14, 1917.

Application filed December 1, 1916. Serial No. 184,421.

To all whom it may concern:

Be it known that I, RALPH A. DURLAND, a citizen of the United. States,residing at Washingtonville, in the county of Orange and Statelof New.York, have invented certainnew and useful Improvements in Valve- SpringCompressors, of which the following is a specification.

This invention relates to a valve spring compressor and the primaryobject of the invention is to provide a device for lifting andcompressing the valve springs employed to operate the valves of agasolene'engine whereby the valves and valve stems may be removed whilethe springs are held in compressed position.

Another object-of the invention is to provide a valve spring compressoradapted to be employed in connection with two or more valve springs, thelifting mechanism including a handle which requires a single downwardmovement for forcing the-lifting plate into raised osition.

.The invention urther aims to provide a device for lifting compressionsprings of this character, having a pair of operating levers operatingin conjunction with a lifting plate, the levers being arranged to lookwhen the plate has been lifted to its limit of upward movement.

A further 0b]6Ct of this invention is the which consists ofcomparatively few parts and is simple in ,construction, but durable andwell adapted to withstand the rough usage to which devices of thischaracter are ordinarily subjected.

For a full description of the invention and the advantages and meritsthereof, reference is to be had to the following description andthe-accompanying drawings, wherein is illustrated the preferred forminvention, in which:

- Figure 1 is a fragmentary-side elevation of my of a portionpf agasolene motor showing my invention applied thereto.

Fig. 2 is a plan view of the device in operative position.

Fig. 3 is a View of a fragmentary port on of a gasolene motor showingthe'invention applied to the'valve springs in the position it assumesimmediately before thelifting 4 operation.

Fig. 4 is a similar viewfshowingthe dev1ce in operative position.

Referring to the drawmg, whereinjis illustrated. the preferred form ofmy invention,

and in which like numerals of reference indicate corresponding partsthroughout the several views, the gasolene motors of the usualconstruction are provided with the valve stems 1 which are circumscribedby the coil compression springs 2. A valve spring seat 3 is slidablymounted uponthe valve stem 1 while beneath the seat 3 the stem isprovided with a pin 4: against which the spring seat. 3 bears forforcing the valve stem downwardly, thus holding the valve (not shown) inclosed position. The.valve x lifting rods 5 are extended upwardly,-through the casing of the motor and are pro ected through thecylindrical sleeves 6,

one of whichis provided for each rod 5.

A lifting. plate 7 is provided and is of substantially .rectangularformation and is provided with the transverse slots 8 which extendinwardly from one edge of the lifting plate and terminate adjacent thecenter thereof. These slots8 are spaced apart for a distance equal tothe distance between the centers of the valve stems 1 so that the valvestems may be received within the slots when the device is 'to beoperated. Depending from one edge of the plate is a guard plate 9 andthe sideedges'of this plate are con- An operating lever ally connectedto the ears 10 by the pivot pin 12 while dependingfrom. the side edgesof the operating lever ,are the 'connecting ears l3. Afulcrum lever 14has one end pivotally carried-by tlre ears 13 whichlare provided with 'apivot pin 15 extending through ,a rolled-portion ofthffulcrum} lever 14as clearly shown by 'Figs. 3: and 4 of the drawing;

It will be understood, of course, that the precise construction of thedevice may'have to-be varied to-conform to the'diflerent designs foundin the various types ofgasolen'e nected to the lifting flanges 10 'upon.which the lifting power is exerted when the operat ing lovers areoperated. I 1 llhas its end pivot-- new fmotors. In the present instancehowever, I l ave illustrated the device in connection with a motor whichis provided with a lip formed by a slight extension of the valve cover17. In, use thedevice in connection with this type of engine,.thelifting plate be first placed in position where the slots fi. willreceive the stems 1, the plate gamin under the valve spring seat}.3 so

ilo'ne by forcing the platein between the pinea -and the seat 3a Theback or guard plate '9 isithen contacting with the side wall ifi'thefulcrum lever 14: will be locked against any further movement and theliftmg position whereby access may be gained to the stemsl or the-rods5.

From-"the foregoing it will befobs'erved that a very simple and durablevalve spring compressor has been provided, the details of which embodythe preferred form. I desire it to be understood however, that slightchanges in the minor details of construction may be made withoutdeparting from the spirit of the invention claims hereunto appended.

I claim:

1. A valve spring compressor comprising plate having a guard plateintegrally formed therewith and depending at right angles from one edgethereof and operating meanspivotally mounted on the guard plate andincluding a fulcrum lever adapted to be locked when the said operatingmeans is actuated to maintain the said plate in raised position.

guard p formed therewith and dflp iilding at right atfthe said seatrests upon the plate. This lever 11' is forced into contact with thelip.

plate will thus be retained in raised.

or the scope of the:

2. A valve spring compressor comprising ed to have its end portionembrace two 0 angles from one edge thereof, an operating lever,pivotally carriedv by the plate, and means associated with the saidlever whereby the said pl'a operating lever. is depressed.

{LQA valve spring compressor comprising, in cpmbinationTwith the valvestems and springs of a gasolene motor, of a guard plate adapted toslidably engage a portion 'aybe raised when the said of the motorbetween two valve stems there- ,of, means integrally formed with theguard plate for engaging two of the springs ci-rcumscribing thesaid'valve stems, and means associated with the said 'first mentionedmeans and adapted to engage'a portion of the motor for imparting alifting motion to the said first mentioned means.

5. A valve spring compressor comprising,

in combination with the valve stems and springs of a gasolene motor, aplate provided with slots for receiving two of the valve stems, the topof the said plate adapted to support the 'ends of the said valvesprings, and means pivotally carried by the said plate and adapted to beengaged by a portion of the motor for imparting a lifting motion to thesaid plate.

6. A valve spring compressor comprising, in combination with the valvestems and springs ofa gasolene motor, a lifting plate provided withslots extending inwardly from the edge of the plate and terminating atthe center thereof for receiving a pair of the said stems, the uppersurface of the plate adapted to engage the lower ends of the valvesprings, ears carried by the plate and disposed directly beneath thesame, the motor having a projection for providing a. lip, and meanspivotally carried by the ears and adapted to engage thesaid lip andadapted for manual'operation for imparting.

a lifting motion to the said plate.

7. A valve spring compressor comprising, in combination with the valvestems and springs of a gasolene motor, a plate adapted to have its endportion embrace two of the said stems for receiving the ends of thecorresponding springs, a guard plate carried by the lifting plate andadapted to engage the motor between two of the said stems, anoperatinglever pivotally carried by the said plate, and means adapted toengage a portion of the motor and adapted to cooperate with the saidlever for providing a fulcrum for the lever whereby a lifting motion maybe imparted to the plate when the lever is manually depressed. Y

S. A valve spring compressor comprising, in combination with the valvestems and springs of a gasolene motor, a plate adaptthe said stems forreceiving the ends of the corresponding springs, a guard plate carriedby the lifting plate and adapted to engage the motor between two of thesaid the lever whereby a lifting motion may be 10 stems, an opeiatinglever pivotally carried imparted to the said plate b the said plate, thesaid lever being pivotfjiy connected to the plate at a point miai- 5 waybetween the said stems, ears carried In testimony whereof I afix mysignature in presence of two Witnesses.

T by'the lever at a point adjacent its pivot RALPH DURLALD' point, andmeans pivotally associated with Witnesses:

the ears and adapted to engage a gsortion J. BRADLEY SCOTT,

of the motor for providing a fulcrum for MARGARET A. CARROLL.

